It’s not complicated
How much water an individual need varies from person to person. Factors that impact your personal requirements include the temperature and humidity of your area, how much exercise and activity you get during the day, your general health, and for women, whether or not you are pregnant or breast-feeding. Although there are several common methods for evaluating how much water you should be drinking daily, I’m a personal fan of using your weight as a measure. Drink between half an ounce and an ounce of water for each pound you weigh, every day.
To determine your normal hydration needs, calculate your body weight in pounds, divide it by 2 and drink that many ounces of water each day. For example, a 150-pound man/woman should drink 75 ounces of quality water each day! If you are in a hot climate or exercising, you should increase this amount.
How much water do you drink?